D-Link DIR-815 1.01 /web/captcha.cgi buffer overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.5$5k-$25k0.00

Summaryinfo

A vulnerability marked as critical has been reported in D-Link DIR-815 1.01. Affected by this issue is some unknown functionality of the file /web/captcha.cgi. The manipulation leads to buffer overflow. This vulnerability is referenced as CVE-2023-37758. No exploit is available.

Detailsinfo

A vulnerability was found in D-Link DIR-815 1.01 (Router Operating System) and classified as critical. This issue affects an unknown code of the file /web/captcha.cgi. The manipulation with an unknown input leads to a buffer overflow vulnerability. Using CWE to declare the problem leads to CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

D-LINK DIR-815 v1.01 was discovered to contain a buffer overflow via the component /web/captcha.cgi.

The weakness was published 07/18/2023. It is possible to read the advisory at hackmd.io. The identification of this vulnerability is CVE-2023-37758 since 07/10/2023. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 01/18/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-41634). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Vendor

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.5

VulDB Base Score: 5.5
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

07/10/2023 🔍
07/18/2023 +8 days 🔍
07/18/2023 +0 days 🔍
01/18/2026 +915 days 🔍

Sourcesinfo

Vendor: dlink.com

Advisory: hackmd.io
Status: Not defined

CVE: CVE-2023-37758 (🔍)
GCVE (CVE): GCVE-0-2023-37758
GCVE (VulDB): GCVE-100-234455
EUVD: 🔍

Entryinfo

Created: 07/18/2023 22:06
Updated: 01/18/2026 06:24
Changes: 07/18/2023 22:06 (40), 08/09/2023 17:08 (11), 01/18/2026 06:24 (16)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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